59

05/02

+: J for

∆R

5 %

Kfor

Mfor

∆R

Ω

No. of R/T

characteristic

K

K

K

Ordering code

10 k

1011

3660

3730

3730

B57620C0103+062

22 k

2003

3930

3960

3980

B57620C0223+062

47 k

2101

4030

4080

4100

B57620C0473+062

100 k

2903

4120

4190

4200

B57620C0104+162

220 k

2904

4230

4280

4300

B57620C0224+062

Reliability data

SMD NTC thermistors are tested in accordance with IEC 60068. The parts are mounted on a

standardized PCB in accordance with IEC 60539-1.

Test

Standard

Test conditions

(typical)

Remarks

Storage in

dry heat

IEC

60068-2-2

JIS C 0021

Storage at upper

category temperature

T: (125

± 2) °C

t: 1000 h

< 3 % /

Storage in damp

heat, steady state

IEC

60068-2-3

JIS C 0022

Temperature of air: (40

± 2) °C

Relative humidity of air:

(93 +2 /–3) %

Duration: 21 days

< 3 %

No visible

damage

Rapid temperature

cycling

IEC

60068-2-14

JIS C 0025

Lower test temperature: – 55

°C

Upper test temperature: 125

°C

Number of cycles: 10

< 3 %

Endurance

T: (65

± 2) °C

t: 1000 h

< 5 %

Solderability

IEC

60068-2-58

JIS C 0054

Solderability:

(215

± 3) °C / (3 ± 0,3) s

(235

± 5) °C / (2 ± 0,2) s

Resistance to soldering heat:

(260

± 5) °C / (10 ± 1) s

95 % of

terminations

wetted

Resistance drift

after soldering

Reflow soldering profile

Wave soldering profile

< 5 %

1) The higher value applies to 220

Ω–1kΩ types.

B57620

Temperature Measurement

C620

SMD NTC Thermistors with Silver Palladium Termination, Size 0805